Design for Extreme Actions

Recommended Prerequisites

Analysis of Structures, Reinforced Concrete, Steel structures.

Teaching Methods

The teaching methods of lectures aim at the global learning of the discipline.

 The lectures are supported in the literature and presentations, with pratical exercicies. There is an opportunity to discuss the concepts and more difficult issues.

Occasionally students are invited to attend lectures by visiting specialists.

Assessment: written examination (100%), or written examination (50%) and written work with oral presentation (50%).

Learning Outcomes

The purpose of this curricular unit is to provide the theoretical bases for the safety of extreme actions, namely fire safety, impact and explosions, robustness of structures and, finally, an analysis and risk management.

The course focuses on all items involved in the fire project: fire scenario, fire load, temperatures in the fire compartment and structural analysis. Relating to the impact and explosion, it will be characterised theses actions and their effect in the structures.

Finally, it will be studied the strategies for limiting the extent of failure using adequate robustness against those accidental actions. Basic knowledge of risk analysis and management in structures will be also transmitted.

These objectives will be achieved in accordance with the current regulation, namely part 1.7 of Eurocode 1 and part 1.2 of the remaining Eurocodes.

Work Placement(s)

No

Syllabus

MODULE A – EXTREME DESIGN SITUATIONS

       - identification of extreme actions

       - strategies for limiting the extent of localised failure

       - use of consequence classes

MODULE B – STRUCTURAL FIRE DESIGN

      - design fire scenarios

      - thermal and mechanical actions

      - temperature analysis

      - mecanical analysis

MODULE C – IMPACT AND EXPLOSIONS

      - representation of impact actions

      - quantification of impact actions

      - representation of internal explosions

      - principles for design

MODULE D – ROBUSTNESS

      - robustness and progressive colapse

      - robustness design methodologies

MODULE E - RISK ASSESSMENT

      - methods of risk analysis

      - risk acceptance

      - risk mitigation measures.

Head Lecturer(s)

Aldina Maria da Cruz Santiago

Assessment Methods

Final assessment
Course assessment can also be made by exam as an alternative to the project: 100.0%

Continuous assessment
Project: 50.0%
Exam: 50.0%

Bibliography

- Jean-Marc Franssen J.M., Vila Real P., Fire Design of Steel Structures, ECCS, Publication 302, ISBN 978-92-9147-099-0.

- Eurocode, Basis of structural design, European Committee for Standardization, 2005.

- Eurocode 1, Actions on structures - Part 1-7: General actions - Accidental actions, 2006.

- Eurocode 3, Design of steel structures . Part 1.2: General rules -Structural fire design.

- Santiago A. (2014), “Impacto em Estruturas Metálicas”. Revista Metálica, CMM, year 15, nº 33, pp. 6-12.

- ROBUSTNESS - Robust structures by joint ductility. Final report, 2009.